pumice stone concrete
[矿业英汉词典]
pumice stone concrete浮石混凝土
是什么意思,pumice stone concrete的解释,pumice stone concrete的翻译
[建筑英汉词典] pumice stone concrete
pumice stone concrete
[矿业英汉词典]
pumice stone concrete是什么意思,pumice stone concrete的解释,pumice stone concrete的翻译
[建筑英汉词典] pumice stone concrete